Ticket #57667: fix-separator-block-default-style.diff

src/wp-content/themes/twentytwentythree/theme.json

@@ -587 +587 @@
                                         "fontWeight": "normal",
                                         "lineHeight": "1.4"
                                 }
+                        },
+                        "core/separator": {
+                                "css": " &:not(.is-style-wide):not(.is-style-dots):not(.alignwide):not(.alignfull){width: 200px}"
                         }
                 },
                 "color": {